Coibamide A 是一种高效的抗增殖环缩肽,最初是从巴拿马海洋蓝藻中分离出来的。在此,我们报告了一种用于组装高度 N-甲基化环缩肽的有效固相策略,这对于生成用于构效关系研究的 coibamide A 衍生物非常宝贵。作为我们合成研究的结果,coibamide A 的两个立体化学分配被修改,并首次实现了这种天然化合物的全合成。
Total synthesis of proposed structure of coibamide A, a highly N- and O-methylated cytotoxic marine cyclodepsipeptide
作者:Wei He、Hai-Bo Qiu、Yi-Jie Chen、Jie Xi、Zhu-Jun Yao
DOI:10.1016/j.tetlet.2014.09.047
日期:2014.10
Totalsynthesis of the originally proposed structure of coibamide A, a highly N- and O-methylated cytotoxic marine cyclodepsipeptide, has been accomplished by using a [(4+1)+3+3]-peptide fragment-coupling strategy and careful examination and optimization of the multiple dense N-methylated amide-bond formations. The synthetic sample of the proposed coibamide A could not match the natural product in